28905877

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 39481344

約数和(自身を除く): 10575467

約数列:

[1, 7, 11, 13, 67, 77, 91, 143, 431, 469, 737, 871, 1001, 3017, 4741, 5159, 5603, 6097, 9581, 28877, 33187, 39221, 61633, 67067, 202139, 317647, 375401, 431431, 2223529, 2627807, 4129411, 28905877]

約数ペア:

[(1, 28905877), (7, 4129411), (11, 2627807), (13, 2223529), (67, 431431), (77, 375401), (91, 317647), (143, 202139), (431, 67067), (469, 61633), (737, 39221), (871, 33187), (1001, 28877), (3017, 9581), (4741, 6097), (5159, 5603)]